Expanding device for can-bumping presses.



R. L. DRAKE.

EXPANDING DEViCE FOR CAN BUiiiPiNG PRESSES.

APPLlCATlON F|LED OCT. 23, i913.

1 164 5822. Patented DecQ 14,

W/ T/VESSES:

I TOR L4 ATTORNEY a R. L. DRAKE.

EXPANDiNG DEVICE FOR CAN BUMPING PBESSES. v APPLICAHON FILED OCT. 23. I913.

1,164,58. I Patented Dec. 14, 1915.

2 SHEETSSHEET 2 WITNESSES: I/L'VENT UNITED satires carton.

aoLLIN L. DRAKE, or roar ARTHUR, ra es, essisnos. To THE Texas compan a coarona rron or TEXAS.

Specification of Letters Patent.

Patented Dec. 1d, 3915.

Application filed October 23, 1913. Serial No. 796,775.

To all whom. it may concern:

Be it known that I, .ROLLIN L. Emits, a citizen of the United States, residing at Port Arthur, in the county of Jefferson and State of Texas, have invented certain new and useful Improvements in Expanding Devices for Can-Bumping Presses, of which the folof crimping together the seams of the can.

joined b This expanding device, is intended to be used on bumping presses in the manufacture of us having walls at angles to each other one or more seams, and more particularly the ordinary square can, whose body is formed of two sheets of metal having their corresponding edges crilnped together, thus forming two opposing seams or joints, and is provided for the purpose of insuring a close well formed seam which will be absolutely liquid proof after it is soldered and consequently not liable to leak, this result being obtained in a manner which will be specificallyxset forth hereinafter.

With the above and other objects in view, the invention has particular relation to certain novel features of construction, operation and arrangement of parts, an example of which is given in this specification and illustrated in the accompanying drawings, .wherein Figure 1 is a perspective view of the bumping press with the expanding device embodying myinvention attached thereto. Fig. 2 is a perspective view of the expanding device. Fig. 3 is a perspective view of a can in the process of formation and before the ends are secured thereon. Fig. l is an edge view of one side of the expanding device, shown in its relation to the horn of the press. Fig. 5 is a side elevation thereof. Fig. (i is an edge view of one of the expanders. Fig. 'Tjkshows a plairview of the exandcr. support. Fig. dis a sectional end view of the idevicc taken on the line (Z -52 of v F ,9 is a sectional end view of the expander support-{taken on the line 6-1: of

Fig. 7. Fig. 10 is a plan view of the cam plate. Fig. 11 is a sectional view of the device taken on the line cc of Fig. 1. Fig. 12 is a fragmentary sectionalview taken on the line (Z(Z of Fig-1. Fig. 13 is a frag inentary end view partly in section of the hammer, and Fig. H is a side elevation of the plunger rod and connections. Fig. 15 is a vertical detail section through the horn.

Referring now more particularly to the drawings wherein like numerals of reference designate similar parts in each of the figures, the numeral 1 refers to the press stand which carries the operative mechanism of the press. The stand 1 carries what is commonly known as the horn projecting from the side thereof. This horn includes the member or plate 2 which is fixed to a slide 2 and which projects in a vertical plane from the press stand.

The-plate 2 on each side thereof, is provided with laterally extending rods or shafts 3, 3, preferably two in number, and extending into bosses 3 3, on said plate'and projecting therefrom on opposite sides thereof, said rods being adjustable in said bosses and located in a horizontal plane, said rods being each held in place by a set screw projecting through the boss. These rods extend an equal distance each way from the plate 2, and the free ends thereof are socketed in the expander supports 4, 4, which are preferably in the form of bars extending lengthwise of the said plate and preferably equal in length to the length of the plate. The slide 2 is vertically slidable relative to the stand, moving in the side grooves 1, l of the stand 1, as shown in Fig. 12 and the horn carried by said slide thus has a lilnited slidable, ertical movement on the stand.

The upper and under edges, respectively, of the plate 2 have cylindrical rods 5 and 6, secured thereto whose inner ends are flush with the inner end of the plate and whose outer ends project preferably some distance beyond the outer end of the plate 2, as shown in Figs. 1 and 2. Fixed to the front side of the stand 1 is a seat or anvil 7, of a length preferably equal to the length of the plate 2 and alined thereunder, and the upper side of this seat has a groove 7 extending fromend to end thereof.

A vertically slidable hammer 8 is provided which is anchored in the stand just above the horn and this hammer is reciprocated up and down by the plunger rod 9, the upper end of said rod being pivoted to the offset 10 on the drive crank shaft 11, said crank shaft operating to reciprocate the plunger rod up and down. Rotation is imparted to said shaft through the pulley wheel 12 which receives rotation from a suitable motor, (not shown). As the shaft 11 is rotated, the hammer 8 is reciproc'ated up and down, with the plunger rod. The hammer S is provided on opposite sides with vertical guide ribs 8 arranged to slide in grooves 8 in the press stand.

The underiace of the hammer 8 has a seat 13, preferably equal in length to the plate 2 and alined thereabove, and the undertace of this seat has a shallow groove extending from end to end thereof. The bars ti. on each side of the plate :2 form supports for the expanders 14, 14-. These expander-s are oblong members whose free ends project out some distance beyond the outer ends of the bars at and their outer faces are oval, shown at 14:, in Fig. 8. The inner face of each of the expanders 14, has a lengthwise rib 15, said ribs extending into lengthwise grooves 16, 16, in the outer edges of the bars 4, 4-, in which the corresponding ribs 15, 15 rest. The outer side of each of the bars 41- has a plurality of notches 4?, preferably two, one side of each notch being abrupt as at 49 and the other side sloping, forming the inclined faces 17, 17, and the es'pandcrs 1d, 14 having inwardly projecting shoulders 18, 18, which fit into said notche', and whose inner ends are inclined as at 18", so as to fit against the said inclined faces 17, 17. The inner edges of the expander mpports 4-, 4 also have notches =1 opposing the notches of the outer u I {Y edges thereof and arranged in the reverse position, forming n JCkS 19, 19 through which extend oblong slt ts 20, 20 and extending through the slots 20, 20 are the bolts 21, 21 whose inner end; are threaded and. engage in tapped holes 21 in the shoulders 18, 18 and secure the libs 15 against disengagement from the groo es 16 in the supports 4:.

Alined with the expanders 1-1, 1 and se cured upon erch side of the stand 1 are cam plates 22, 22 each having a slot therein. The lower end of this slot extends vertically, but the up per end is forwardly inclined, forming a ram 2-1, and the inner end of each expander nas an inwardly projecting stud 25 which projects into its corresponding slot 28.

In the process of forming a can, two sheets of metal are bent so that their sides extend at riglt angles to each other and the edges are suitably criinped and the crimps of the two sleets are then interlocked, as shown in Fig. 3, and placed over the horn 2 so that the crimped edges, or seams, will rest in grioves 5, 6 above and below "the rods 5 er d 6, respectively. The press is then operathe hammer 8.

tively connected with its driving means and a downward stroke is thereby imparted to he hammer is thereby driven downward, the seat 13 imparting a sudden stroke to the under seam which at that moment rests in the said. groove of the seat 7 and the, crimped edges are thus firmly locked together. l-lowever, as the hammer descends, the studs more downwardly in the slots 23 and impart a rearward pull to the expander-s 1%. As the expanders more back the inclined faces of the inner ends of the shoulders 18, 18 move on the inclined faces 17, 17, causing said eripanders spread relative to each other, the bolts :41 moving in their slots 20., 20.

The spreading of the expanders ll ll: is exerted against the sheets of which the sides of the can are formed and causes the crimped edges to completely engage just before the final stroke of the hammer im parted and this insures the complete loching of the crimped edges.

.l lntending upward from the upper edge of the slide 2' are the rods 26, 26 which e2;- tend up through orifices 27, 27 in the laterally extending portions of the hammer 8. As the hammer moves up and down it slides on the rods 26, 26. The upper end of each rod 26 has an enlarged head 28 and just before the hammer reaches the limit of its upward movement it engages against the heads 28 and through the rods 26, 26 elevates the. horn. At the same time by reason oi the forward curve of the upper ends of the slots :23, the expanders 11 1% are driven forward and pulled in or retracted, the heads of the bolts 21 moving on the inclined faces of the notches in which they rest and causing the expanders to more toward each other and the tension on the can is thereby'released so that the can may be readily re moved from the horn.

I have shown only one form of this device but it is obvious that mechanical variations may be made therein without departing from the principle of the invention, and I hereby reserve the right to make such cl'ianges will not depart from the scope of the appended claims.

What I claim and d sire to secure by Let tors Patent of the Uni .d States is 1. In a bumping press, a stand, a reciprocable horn on said stand, an anvil in the path of movement of said horn, a. hai'nu'ier to engage the horn to move it toward the anvil, an expander *arried by the horn, and means to expand said expander during movement of the said horn'toward the anvil.

In a bumping press, astand, a member vertically movable thereon, an anvil beneath said member, a hammer to engage the upper portion of said member to more toward the anvil, enpanders carried by aid member, and means whereby increment of said tracts the same, and a the anvil, an expander carried by said mom her, and cam means whereby movement of said member toward the anvil expands said expander.

5. in a bumping press, a stand, a member vertically movable thereon, an anvil beneath said member, a. hammer to engage the upper portion of said member to move it toward the anvil, an expander carried by said member, cam means whereby movement of said member toward the anvil expands said expander, and means to retract said expander upon movement or" the member away from the anvil.

6. In a bumping press, a stand, a reciprocable horn on the stand, an anvil in the path of movement of the horn, a hammer to engage the horn to move it toward the anvil, expanders mounted on opposite sides of said horn, and movable lengthwise thereof, means between said expanders whereby lengthwise movement of the expandcrs projects and retracts the same, and means for moving said expanders lengthwise upon n' ovcment of the horn toward and away from the anvil.

7. In a bumping press, a stand, a reciprocable horn on-the stand, an anvil in the path of movement of the horn, a hammer to engage the horn to move it toward the anvil, expanders mounted on opposite sides or said horn, and movable lengthwise thereof, means between said expanders whereby lengthwise movement of the expanoers projects and recam for moving said expanders lengthwise upon movement of the horn toward and away from the anvil.

8. In a bumping'press, a stand, a reciprocable horn on the stand, an anvil in the path of movement of the horn. a hammer to enthe horn to move it toward the anvil, expandcrs mounted on opposite sides of said horn and supported thereby, inclined surfaces between the cxpandcrs and the horn whereby movement of the expandcrs in one direction project the same and in the other.

direction. retracts them. and means whereb the. reciprocating movements of i move the expanders.

97 In a bumping press. a stand. a reciprocable horn on said stand, a n anvil in the path of movement of said horn. a hammer to engage the horn, an expander, and means acting automatically upon movement of the horn in one direction to project the expander and in the other direction to retract th ame.

10. In a bumping press, a stand, a reciprocable horn on the stand, an anvil in the path of movement of said horn, a hammer to engage the born to move it toward the anvil, means connecting the hammer and horn to retract the latter from the anvil, an expander, and means acting automatically by movement of the horn in one direction to project the expander and in the other direction to retract the same.

11. In a bumping press, a supporting stand, a horn promoting therefrom and slidable relative thereto, reciprocable expanders carried by the horn and laterally movable relative thereto, and means whereby the slidingmovement of the horn operates the expanders.

12. In a bumping press, a stand, a horn slidably connected thereto, a. seat fixed to the stand and arranged on one side of the horn, a slid-able hammer arranged on the side of the horn opposing said seat, means opera tively connected with the hammer for reciprocating the same, reciprocable expanding members, one arranged upon each side of said horn and reciprocable laterally relative thereto, and means whereby the sliding movement of the horn operates the expanding members. Y

13. In abumping, press, a stand, a vertisally movable horn slidably connected to the stand, a, seat fix d to the stand underneath the horn, a reciprocating hammer slidably connected to the stand and arranged above the horn, means operatively connected'with the hammer and reciprocating the same, ex-

panding members carried by the horn, one arranged on each side, the inner ends of said members having connection with the stand and arranged to expand as the horn moves downwa d.

I in a bumping press, a supporting stand, ahorn pro ecting therefrom and having a slidable connection ther with, a seat fixed to the stand underneath the horn, a recipro-e ting hammer arranged on the opposite side of the horn to said seat, means operatively connected with the hammer and reciprocating the same, expanding members one arranged upon each side oi": said horn,

cams carried by the stand, one on each side,

operative coimcctions between the cams and the respective expanding members and arranged to impartlongitudinal movement to said expar in ILlQIH JQl'S in unison with the movemc said lon dioal movement causes the expanding mei tive to the horn.

15. in a bumping press, a supporting stand, a member projecting therefrom and having vertical movement relative thereto, a seat fixed to the stand underneath said projecting member, a reciprocating hammer arranged above said member, means operatively connected With the hammer and re respective expanders and arranged to impart relative movement to said contacting inclined faces as the said member moves vertically.

16. In a bumping press, a supporting stand, a member pro ect1ng therefrom and having a vertical movement relative thereto, expanders, one arranged upon each side of said member, contacting inclined faces carried by said member and said eXp-anders, respectively, cams carried by the stand, one on each side, operative connections between the cams and the respective expanders and so arranged as to impart relative movement to said contacting inclined faces as the said member moves vertically.

stand, a member projecting therefrom and having a vertical movement relative thereto, an expander, contacting inclined faces car ried by said member and said expander re spectively', a cam carried by the stand, an operative connection between the cam and the expander and so arranged. as to impart relative movement to said contacting inclined faces as the said inember'movcs vertically.

18. In a bumping press, a stand, a reciprocable horn on the stand, an. anvil in the path of movement of said horn, a-hamlner-to engage the horn to move it toward the anvil, an expander carried by the horn, said expander being mounted for movement length- Wise of the horn and laterally thereof, means whereby said longitudinal movement of the expander causes said lateral movement thereof, and means operable during move ment of said horn toward the anvil to cause said longitudinal movement. I

In testimony whereof I have signed my name to this specification. in the presence of two subscribing Witnesses.

ROLLIN L. DRAKE, Witnesses G. E. YATES, P. W. Ganss,

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D, G. 

